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Long-term persistence and cross-wavelet transform analysis of solar filament activity
An, Jianmei1; Cai YF(蔡云芳)2; Qi, Yi1; Zuo, Yongyan1; Wang, Xianping1
Source PublicationProceedings of SPIE - The International Society for Optical Engineering - Tenth International Conference on Digital Image Processing, ICDIP 2018
2018
Volume10806
DOI10.1117/12.2503327
Author of SourceJiang, X; Hwang, JN
Contribution Rank第2完成单位
Indexed ByEI ; CPCI
Conference Name10th International Conference on Digital Image Processing (ICDIP 2018)
Conference Date2018-05-11
Conference PlaceShanghai, China
Conference SponsorShanghai Key Lab Multidimens Informat Proc; Int Assoc Comp Sci & Informat Technol
KeywordTime-frequency Signal Analysis Statistical Signal Processing Wavelet Transform Correlation Analysis
Abstract

Solar time series analysis is one of the most important topics in statistical astrophysics, which aims at revealing the complex dynamical behavior of long-term solar magnetic activity. In this work, several statistical analysis techniques are combined to study the long-term persistence and phase relationship of monthly filament activity between the low latitudes and the high latitudes during the time period from 1957 April to 2010 June. Based on these advanced analysis approaches, the following remarkable results are found: (1) solar filament activity at the low latitudes lags behind that at the high latitudes with a phase shift of 40 months, and the largest positive coefficient is found to be 0.35; (2) solar filament activity at both the low and the high latitudes exhibits a strong long-term persistence behavior, that is, their nonlinear dynamical behavior could not be regarded as stochastic phenomenon; (3) the relative phase relationships between the low latitudes and the high latitudes are not in phase for the studied periodic scales, but they are coherent in the periods of 10-14 years. To sum up, the analysis results could give more useful information on our understanding the solar and the stellar dynamo theory, and also provide some crucial roles of solar magnetic activity variations.

Funding ProjectN/A
Funding OrganizationN/A
Language英语
Subject Area太阳与太阳系
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeProceedings Paper
PublisherSPIE-INT SOC OPTICAL ENGINEERING
Publication Place1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
ISBN9781510621992
ISSN0277-786X
URL查看原文
WOS IDWOS:000452819600251
WOS Research AreaOptics ; Imaging Science & Photographic Technology
WOS SubjectOptics ; Imaging Science & Photographic Technology
WOS KeywordPhase Asynchrony ; Polar Faculae ; Periodicities ; Index
EI Accession Number20183605779094
EI KeywordsTime Series Analysis
EI Classification Number657.2extraterrestrial Physics And Stellar Phenomena - 921.3mathematical Transformations ; 922.2mathematical Statistics - 961systems Science
Citation statistics
Document Type会议论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/17407
Collection抚仙湖太阳观测站
Corresponding AuthorQi, Yi
Affiliation1.School of Software Engineering, Chongqing University of Arts and Sciences, Chongqing; 402160, China
2.Yunnan Observatories, Chinese Academy of Sciences, Kunming; 650216, China
Recommended Citation
GB/T 7714
An, Jianmei,Cai YF,Qi, Yi,et al. Long-term persistence and cross-wavelet transform analysis of solar filament activity[C]//Jiang, X; Hwang, JN. 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA:SPIE-INT SOC OPTICAL ENGINEERING,2018.
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